Cash, cash equivalents and marketable securities consisted of the following at September 30, 2019 and December 31, 2018 (in thousands):
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Unrealized
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Unrealized
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Fair
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September 30, 2019
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Amortized Cost
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|
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Gains
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|
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Losses
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|
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Value
|
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Cash and Cash equivalents:
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|
|
|
|
|
|
|
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|
|
|
|
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Cash and money market funds
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$
|
21,364
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$
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—
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|
|
$
|
—
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|
|
$
|
21,364
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Overnight repurchase agreements
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12,000
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|
|
|
—
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|
|
|
—
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|
|
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12,000
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Marketable Securities:
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
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U.S. treasury obligations
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|
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74,753
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|
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|
21
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|
|
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—
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|
|
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74,774
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Total:
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|
$
|
108,117
|
|
|
$
|
21
|
|
|
$
|
—
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|
|
$
|
108,138
|
|
|
|
|
|
|
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Unrealized
|
|
|
Unrealized
|
|
|
Fair
|
|
December 31, 2018
|
|
Amortized Cost
|
|
|
Gains
|
|
|
Losses
|
|
|
Value
|
|
Cash and Cash equivalents:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash and money market funds
|
|
$
|
34,886
|
|
|
$
|
—
|
|
|
$
|
—
|
|
|
$
|
34,886
|
|
Overnight repurchase agreements
|
|
|
15,000
|
|
|
|
—
|
|
|
|
—
|
|
|
|
15,000
|
|
Marketable Securities:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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U.S. treasury obligations
|
|
|
49,796
|
|
|
|
—
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|
|
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(3
|
)
|
|
|
49,793
|
|
Total:
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|
$
|
99,682
|
|
|
$
|
—
|
|
|
$
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(3
|
)
|
|
$
|
99,679
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|